Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human body contains over a billion miles of DNA.
147
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
You forget 90% of your dreams.
256
By weight, Bone is five times stronger than steel.
417